reductive pentose-phosphate cycle

  • Label (1)

    • reductive pentose-phosphate cycle (en)

  • Synonyms (2)

    • C3 photosynthesis (synonym, en)
    • Calvin cycle (synonym, en)

  • Type

    • process

  • URI (1)

    • http://purl.org/obo/owl/GO#GO_0019253

  • Definition (1)

    • The fixation of carbon dioxide (CO2) as glucose in the chloroplasts of C3 plants; uses ATP and NADPH formed in the light reactions of photosynthesis; carbon dioxide reacts with ribulose 1,5-bisphosphate (catalyzed by the function of ribulose-bisphosphate carboxylase) to yield two molecules of 3-phosphoglycerate; these are then phosphorylated by ATP to 1,3-bisphosphateglyceraldehyde which, in turn, is then reduced by NADPH to glyceraldehyde 3-phosphate. The glyceraldehyde 3-phosphate is converted to fructose 5-phosphate and ribulose 5-phosphate by aldolase and other enzymes; the ribulose 5-phosphate is phosphorylated by ATP to ribulose 1,5-bisphosphate.

      (en)

  • Superclass (1)

  • Subclass (0)

  • Relations (4)